What ports need open at PIX for IPCC services

Hi I am configuring the PIX to protect the inside Voice Server (CCM, IPCC, Voice GW), all IP phones and soft-phones are at the outside. I want to know what ports I should open for IPCC services properly, (I already found documents for port usage for CCM). I found a PDF in Cisco site and talk about the ports usage for ICM/IPCC, it is that one? Still confusing.. Thanks.

I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...
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